Padlock.



F. SLEY;

PADLUGK.

(Application led Aug. 16, 1899.) v(No Model.)

Patented Mar. Il, |902.

o unlocked position.

Urvirnn *Srnrns FRANK SOLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TOrPHE MILLER LOCK COMPANY, OF PHILADELPHIA, PENNSYLVANIA, AOCR-- PORATIONOF PENNSYLVANIA.

PAD LOCK.

SPECIFICATION forming part of Letters Patent No. 695,346, dated March11, 1902.

Application liled August 16, 1899. Serial No. 727,397. (Nemo/icl.)

provements in Padlocks, of which the following is a specification.

The object of my invention is to construct a padlock possessing a highdegree of security, together with extreme simplicity and 1o cheapness ofconstruction; and this object I attain in the manner hereinafter setforth,

reference being had to the accompanying drawings, in which-- Figure 1 isa view of a padlock constructed i 5 in accordance with my invention, thefaceplate of the lock being removed to show the internal constructionand the parts being shown in the locked position. Fig. 2 is a Viewsimilar to Fig. 1, but showing the parts in the Fig. 3 is a transversesection on the line t Fig. 1. Figs. eand are views illustrating slightmodifications in the shackle-locking plate. Fig. 6 is an outside view ofthe lower portion of the lock. Fig. 7

2 5 is a perspective View of one of the elements of the lock, and Fig. 8is a perspective view of the key. Figs. 5, 6, and8 are on a smallerscale than the otherV gures of the drawings.

The casing of the lock is composed of front 3o and back plates 1 and 2,preferably struck up from sheet metal and dished, as shown in Fig. 3, soas to forni a casing for the reception of the working parts of the lock,the front and back plates of the lock being preferably se- 3 5 curedtogether by riveting the ends of transverse studs or posts 3, 4, 5, and6?, which are suitably shouldered, so as to provide bearings for theopposite face-plates of the lock.

In the lock shown in Figs. 1, 2, and 3 the 4o stud 3 serves asa pivotfor the shackle 7,

which has adjacent to said pivot a projecting heel 8 and a inger 9, thefree end of the shackle having a notch or recess 10 for the reception ofa bolt 11 upon a locking-plate 12,

which has slots 13 and 14, whereby it is suitably guided upon the studsor posts 4 and 5 of the lock-casing, said locking-plate also having atail 15, which engages with the heel 8 of the shackle, and a lug orstump 16 for entering the notches 17 oi the tumblers 1S when saidnotches have been brought into line. The tumblers are pivoted to thestud et, each .tumbler being acted upon by a spring 18a,

bearing upon the stud Gland tending to depress the free end of thetumbler to an extent permitted by contact of the stop-lug 19 thereonwith the stump 16. y

The lockingplate 12 has a shoulder 20, adapted to be acted upon by a keyinserted in the rotatable key-hub 21, so that the said plate can bemoved in order to withdraw its bolt 11 from the notch of the shackle,the same movement causing the stump 16 to enter the notches 17 ofthe-tumblers 18, which have been .previously moved by the key, so as tobring their notches into line with said stump. A spring 22 is coiledaround the stud 6, one end of this spring acting upon a lug orprojection 23 on the locking-plate 12 in order to move the latter in adirection opposite to that in which it is moved by the key, the otherend of said spring bearing upon the lock casing. Another spring 24 iscoiled around a stud 25, one end of this spring acting upon the finger 9of the shackle, so as to cause said shackle to swing open as soon as itis released from the retaining influence of the bolt 11 and tail 15 ofthe locking-plate. (See Fig. 2.) The other end of the spring 2i bearsupon an L-shaped stop-flange 26, which is formed upon a plate 27,mounted upon the stud 5, the form oi' this stop-flange being moreclearly shown in Fig. 7. The flange extends across the interior of thelock from the casing 1 to the plate 12 and serves in connection withsaid plate and the lock--casing to completely inclose the space intowhich the notched end of the shackle isintended to project. Hence itprevents access of dirt or other foreign matters to the interior of thelock-casing and also any tampering with the tumblers of the lock whenthe shackle is open.

The guide-slot 13 of the locking-plate and that face of the tail 15 ofsaid plate which engages with the heel 8 of the shackle are angularlydisposed in respect to the lockingbolt 11, guideslot 14, and stump 16ot' the locking-plate-.that is to say, while the latter travel insubstantially horizontal lines on the opening movement of thelocking-plate the engaging face of the tail 15 and the slottedlowerportion of the locking-plate travel rearwardly and downwardly. Byreason of this construction the engaging face of the tail 15 ofthelocking-plate when in locking position is substantially at right anglesto the line of movement which the heel S of the shackle must follow inthe opening movement of said shackle. Consequently said tail 15 opposesan effective resistance to such opening movement and will serve toprevent the opening of the shackle even if the bolt 11 and notch 10 arenot operative to effect such result.

When the lock is closed, the lug 23 of the locking-plate bears againstthe casing of the lock, as shown in Fig. l, and hence precludes anyattempt to open the lock by jarring the same, so as to cause thelocking-plate to swing upon the stump 16 as a fulcrum, for such movementwould necessitate an outward movement of the lug 23, and this isimpossible because of the bearing of said lng upon the casing of thelock.

The combined sliding and swinging movement of the locking-plate 12 isalways to be preferred, although it may be departed from withoutsacrificing the other valuable features of my invention-that is to say,the simplicity and economy of the lock when compared with the highdegree of security afforded by it. These are due to the fact that thelock has but one pa1't--na1nely, the locking-plate 12-in addition to theparts which are essential to any padlock of this character--that is tosay, the casing, the shackle, the spring or springs, the tumblers, andthe key-hub. IIence,owing to this simplicityin construction, Icanwithout unduly increasing the expense of the lock use therein aconsiderable number of tumblers, and thus gain the security which suchconsiderable number of tumblers affords.

As an instance of a lock embodying some of the features of my invention,but having a parallel moving locking-plate 12 instead of a plate whichhas a combined sliding and swinging movement, I may referto thelnodication shown in Fig. 4, the operation of which will be readilyunderstood without detailed explanation.

In Fig. 5 I have shown a further modification,rin which thelocking-plate 12b has a swinging movement only, being hung to the studG, but having the beveled and diagonally-movin g locking-tail 15 forengaging with the heel 8 of the shackle when the lock is closed.

In Figs. 4 and 5 I have omitted to show the flange 26 and plate 27 inorder to more clearly illustrate the locking-plate.

For additional security the keyhole 28, formed in the face-plate 1 ofthe lock-casing,

is corrugated, as shown in Fig. 6, and a similar form is given tothe-bitted portion of the key, as shown in Figs. 2 and 8, the key havinga flat stern or shank-31 for engagement with the key-hub 21, and aside-bitted and longitudinally-corru gated portion 32, projectinglaterally from said stem,as shown in Fig. 8.

In order to lessen the friction due to the sliding movement of thelocking-plate, the latter has by preference struck up from it studs 30,which bear upon the back plate of the lock-casing and prevent contact ofthe locking-plate therewith.

Having thus described my invention, I claim and desire to secure byLetters Patent- 1. A padlock in which are combined a casing, a pivotedshackle having a projecting heel, a series of notched tumbler-s, and aguided locking-plate adapted to bev actuated by the key and having abolt for engaging 'with a notch in the shackle, a stump for engagingwith the notches in the tumblers, a tail for engaging with the heel ofthe shackle, and a lug bearing against the casing of the lock when thelocking-,plate is in its retaining position, substantially as specified.

2. The combination, in a padlock, of the casing, a pivoted shacklehaving a projecting heel, a series of notched tumblers, and alocking-plate adapted to be actuated by the key, said locking-platehaving slots for the reception of guide studs or posts in the lock, abolt for engaging with the notch in the shackle, a stump for engagingwith the notches of the tumblers, and a tail for engaging with the heelof the shackle, the engaging face of said tail and the rear guide-slotof the lockingplate being angularly disposed in respect to the lockingbolt, forward guide slot and stump, whereby the movement of thelockingplate is a combined sliding and swinging movement, substantiallyas specified.

3. The combination, in a padlock, of the casing, the pivoted shacklehaving a projecting heel, a series of notched tumblers, and alocking-plate having slots for the reception of guide studs or posts inthe look, a lockingbolt for engaging a notch of the shackle, a stump forentering the notches of the tumblers, a tail for engaging with the heelof the shackle, and a lug bearing against the casing of the lock whenthe latter is closed, the rear guide-slot of the locking-plate and theengaging face of the tail of said plate being angularly disposed inrespect to the locking-bolt, forward guide-slot and stump, substantiallyas specied.

4. The combination in a padlock, of the casing, the shackle, lockingdevices for the latter, and an angular iange for closing at the bottomand inner side the space within thelock into which the nose of theshackle enters, substantially as specified.

5. The combination in a padlock, of the cas- ICO IZO

695,346 SII ing, the shackle, locking devices for the latter, and aplate mounted within the lock-casing and having an angular ange forclosing at the bottom and inner side the space Within the l 5 lock intowhich the nose of the shackle enters,

substantially as specified.

In testimony whereof I have signed my name to this specication in thepresence of two subscribing witnesses.

FRANK SOLEY.

Witnesses:

ALLAN J. OAssIDY, CHARLES E. LEVER.

